| 1 | package org.apache.velocity.runtime.directive; |
| 2 | |
| 3 | /* |
| 4 | * Copyright 2000-2001,2004 The Apache Software Foundation. |
| 5 | * |
| 6 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 7 | * you may not use this file except in compliance with the License. |
| 8 | * You may obtain a copy of the License at |
| 9 | * |
| 10 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 11 | * |
| 12 | * Unless required by applicable law or agreed to in writing, software |
| 13 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 14 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 15 | * See the License for the specific language governing permissions and |
| 16 | * limitations under the License. |
| 17 | */ |
| 18 | |
| 19 | import org.apache.velocity.context.InternalContextAdapter; |
| 20 | import org.apache.velocity.runtime.RuntimeConstants; |
| 21 | import org.apache.velocity.runtime.resource.Resource; |
| 22 | |
| 23 | /** |
| 24 | * Base class for directives which do input operations |
| 25 | * (e.g. <code>#include()</code>, <code>#parse()</code>, etc.). |
| 26 | * |
| 27 | * @author <a href="mailto:dlr@finemaltcoding.com">Daniel Rall</a> |
| 28 | * @since 1.4 |
| 29 | */ |
| 30 | public abstract class InputBase extends Directive |
| 31 | { |
| 32 | /** |
| 33 | * Decides the encoding used during input processing of this |
| 34 | * directive. |
| 35 | * |
| 36 | * Get the resource, and assume that we use the encoding of the |
| 37 | * current template the 'current resource' can be |
| 38 | * <code>null</code> if we are processing a stream.... |
| 39 | * |
| 40 | * @param context The context to derive the default input encoding |
| 41 | * from. |
| 42 | * @return The encoding to use when processing this directive. |
| 43 | */ |
| 44 | protected String getInputEncoding(InternalContextAdapter context) |
| 45 | { |
| 46 | Resource current = context.getCurrentResource(); |
| 47 | if (current != null) |
| 48 | { |
| 49 | return current.getEncoding(); |
| 50 | } |
| 51 | else |
| 52 | { |
| 53 | return (String) rsvc.getProperty(RuntimeConstants.INPUT_ENCODING); |
| 54 | } |
| 55 | } |
| 56 | } |